Bulk 5/16"-18 Grade A Hex Bolts (A307, Coarse Thread, Hot-Dipped Galvanized) Length:400 Qty - 5/16"-18 x 4-1/2" (PT) Monster Bolts has been a

Monster Bolts has been a leading supplier to industrial and manufacturing clients

The wax coating provides lubrication for smoother installation

Pre-drilling the correct pilot hole size is crucial for preventing wood splitting and ensuring maximum holding power

making these machine screws perfect for metal-to-metal or metal-to-wood connections where a secure

Standards: Manufactured to DIN 7991 / ISO 10642 for true countersunk geometry

Bulk 5/16"-18 Grade A Hex Bolts (A307, Coarse Thread, Hot-Dipped Galvanized) Length:400 Qty - 5/16"-18 x 4-1/2" (PT) Monster Bolts has been aBulk 5 16" 18 Grade A Hex Bolts (A307, Coarse Thread, Hot Dipped Galvanized) Heavy Duty Corrosion Resistant Fasteners for Industrial & Structural Use For high strength, corrosion resistant fastening, trust 5 16" 18 ASTM A307 Grade A Hex Bolts. Manufactured from low carbon steel with a Hot Dipped Galvanized (HDG) finish, these bolts provide enhanced durability and protection against rust and corrosion. Ideal for outdoor, marine, infrastructure, and